Description : “Pop off” of a porcelain veneer from the under the lying gold crown is due to:** A. Too thick application of pure gold surface conditioner B. Contamination at the porcelain metal interface C. Under firing the opaque layer D. All of the above
Last Answer : B. Contamination at the porcelain metal interface
Description : An advantage of metal. ceramic crowns, compared wit full ceramic crowns for restoring anterior teeth is, A. Palatal reduction may be of minimal thickness. B. Overall conservative for tooth structure. C. Ability to watch the appearance of adjacent natural teeth. D. Less laboratory time.
Last Answer : A. Palatal reduction may be of minimal thickness.
Description : An advantage of metal-ceramic crowns, compared wit full ceramic crowns for restoring anterior teeth is, A. Palatal reduction may be of minimal thickness B. Overall conservative for tooth structure C. Ability to watch the appearance of adjacent natural teeth D. Less laboratory time
Last Answer : A. Palatal reduction may be of minimal thickness
Description : The main purpose of finishing the enamel walls is, A. Remove loose enamel rods B. Provide a better surface for the adoption of restorative material
Last Answer : A. Remove loose enamel rods
Description : The advantage of firing porcelain in vacuum:** A. Reduces size of air-bubbles incorporated thus decreasing porosity B. Removes water before firing, increasing the hardness of porcelain C. Significantly lowers firing temperature
Last Answer : A. Reduces size of air-bubbles incorporated thus decreasing porosity
Description : The most common cause of porosity in porcelain jacket crowns is, A. Moisture contamination B. Excessive firing temperature C. Failure to anneal the platinum matrix D. Excessive condensation of the porcelain E. Inadequate condensation of the porcelain
Last Answer : E. Inadequate condensation of the porcelain
Description : What is the best way to cement Maryland bridge, A. GIC B. Resin C. High compression restorative resin D. Zinc Phosphate cement E. Oxide Zinc and eugenol
Last Answer : B. Resin
Description : Optimum penetration of a .024 or .031 inch self-threading pin in dentin is . . . a. 0.5 mm b. 1.0 mm c. 2.0 mm d. 2.5 mm e. 3.0 mm
Last Answer : c. 2.0 mm
Description : The OPTIMUM crown to root ratio for abutment tooth is:** A. 2:3 B. 1:1
Last Answer : A. 2:3
Description : In a vital pulp therapy, what is the optimum depth for a pin hole in a tooth: A. 4-5mm B. Approximately 2mm C. Less than 2mm D. 1-1.5mm
Last Answer : A. 4-5mm
Description : To achieve optimum cavity preparation, which of the following factors of internal anatomy must be considered in root canal treatment: A. Outline form B. The age and shape of pulp chamber; in ... root canals. C. Internal external relationship D. Intra-coronal preparation E. None of the above
Last Answer : B. The age and shape of pulp chamber; in addition to the direction of individual root canals.
Description : The optimum cavosurface angle for occlusal amalgam surface is: A. 45-60° B. 70-85° C. 45-80° D. 95-110° E. 130-150°
Last Answer : D. 95-110°
Description : .Fluoridation is the adjustment of the fluoride content of a community water supply to optimum levels for caries prevention. Which of the following statement is correct? A. Tooth decay ... in smooth surface caries from in pit and fissures D. Fluoridation increases vulnerability to osteoporosis
Last Answer : C. Greater reduction in smooth surface caries from in pit and fissures
Description : Rough surface/Porosity of porcelain is a result of: A. Lack of compression/ condensation B. Sudden high temperature
Last Answer : A. Lack of compression/ condensation
Description : While giving CPR which of the following is considered: a. It achieves 30% of cardiac output with 60 compressions per minute. b. It achieves normal blood oxygen levels with 12 reseparations ... starting compression. d. Cardiac output has to be monitored regularly by checking radial pulse.
Last Answer : c. You have to check compression point by thumbing before starting compression.
Description : Compound is, A. Very accurate compression material B. Thermoplastic material
Last Answer : B. Thermoplastic material
Description : Which of the following is NOT a characteristic of glass ionomer cements? a. strong in compression but weaker in tension True b. the matrix is formed during the initial set of the cement c. sets via ... for at least 24 hours true d. suitable for use as a core build up material in anterior teeth
Last Answer : d. suitable for use as a core build up material in anterior teeth
Description : While giving CPR which of the following is correct: A. It achieves 30% of cardiac output with 60 compressions per minute B. It achieves normal blood oxygen levels with 12 ... thumping before starting compression D. Cardiac output has to be monitored regularly by checking radial pulse.
Last Answer : C. You have to check compression point by thumping before starting compression
Description : At what rate should chest cardiac compression be done in an adult:** A. 12 times a minute B. 24 times a minute C. 50 times a minute D. 80 times a minute
Last Answer : D. 80 times a minute
Description : Ceramic materials are (A) Organic in nature (B) Stronger in compression than in tension (C) Always amorphous in nature (D) Always bad heat conductors
Last Answer : (B) Stronger in compression than in tension
Description : With view to Nitrous Oxide what is the major pharmacological problem? A. Contraindicated in pregnancy B. Contra indicated in cardiac dysrhythmias C. Diffusion hypoxia at the end of the case due to slow solubility of the agent in blood
Last Answer : C. Diffusion hypoxia at the end of the case due to slow solubility of the agent in blood
Description : The most significant finding in clinical evaluation of parotid mass may be accompanying,** A. Lympha adenopathy B. Nodular consistency C. Facial paralysis D. Slow progressive enlargement E. Xerostomia
Last Answer : C. Facial paralysis
Description : How is firing photons at the surface of a metal analogous to rolling different types of balls at a set of bowling pins ?
Last Answer : Js
Description : In cementing Maryland or Roche bridges, the effect is generally to, a. Lighten the colour of the teeth by the opacity of the cement b. Darken the colour of the abutment by the presence ... lingual c. Have no detrimental colour effect. d. Darken the abutment teeth by incisal metal coverage
Last Answer : c. Have no detrimental colour effect.
Description : A partial denture that seats on the master cast but fails to seat correctly in the mouth is a result of, A. Contraction of the metal framework during casting B. Insufficient expansion of the investment material C. Distortion of impression D. Failure to block out unwanted undercuts
Last Answer : C. Distortion of impression
Description : The ductility of metal is usually expressed in terms of the: A. Yield strength (point where the material is not longer elastic) B. Percent elongation C. Modulus of elasticity (stiffness of the material)
Last Answer : B. Percent elongation
Description : When should metallic framework not be contaminated during the fabrication of a porcelain fused to metal crown: A. Between bisque stage and glazing stage B. Between preheat and opaque stages C. Between opaque and bisque stages D. Between one opaque and two opaque stages
Last Answer : B. Between preheat and opaque stages
Description : What is the minimal labial reduction for porcelain metal crowns: A. 1mm B. 1.5mm C. 0.5mm
Last Answer : B. 1.5mm
Description : You can increase the retention of a Maryland bridge by: A. Incorporating mesh work in wax pattern B. Perforation techniques in the metal cast
Last Answer : A. Incorporating mesh work in wax pattern
Description : After making an impression to reline an RPD the dentist notes that the indirect retainers are not resting on the tooth. To avoid this, what process should have undertaken initially: A. Ask ... abutment tooth while setting C. Fabricate new denture D. Add impression material and close the gap
Last Answer : B. Hold the metal base frame against the abutment tooth while setting
Description : Where do Maryland bridges lose retention often: A. Resin-metal B. Resin enamel C. Resin layer
Last Answer : A. Resin-metal
Description : The minimal labial tooth reduction for satisfactory aesthetics with porcelain fused to metal crown is, A. 1mm B. The full thickness of enamel C. 1.5 mm D. 2.5mm E. One third of the dentine thickness
Last Answer : C. 1.5 mm
Description : Wrought metal is to be, A. Marble B. Quenched C. Subjected /undergone/ to cold treatment during processing (annealed)
Last Answer : C. Subjected /undergone/ to cold treatment during processing (annealed)
Description : The most common failure in constructing porcelain to metal is: A. Improper metal framework B. Rapid heating
Last Answer : A. Improper metal framework
Description : In planning and construction of a cast metal partial denture the study cast, M07 A. facilitate the construction of custom/special trays B. minimize the need for articulating C. provide only ... best assessed clinically D. can be used as a working cast when duplicating facilities are not available
Last Answer : A. facilitate the construction of custom/special trays
Description : Which epoxy will join ceramic and metal together?
Last Answer : I can't recommend one over the other, but any two part epoxy should work.
Description : I am deep but not a basin. I hold, but do not have hands. I am made of plastic, metal or ceramic. What am I? -Riddles
Last Answer : This answer was deleted by moderators
Description : How long do ceramic knife sharpeners last, vs. metal or electric if you use them weekly?
Last Answer : Ceramic knife sharpeners can last for several years if you use them weekly. Metal sharpeners last much longer.
Description : The form of the fuel in U.S. commercial nuclear power plants is which of the following: w) uranium oxide ceramic pellets x) atomic vapor y) uranium metal tubes z) uranium solution in water
Last Answer : ANSWER: W -- URANIUM OXIDE CERAMIC PELLETS
Description : One metal dissolved in another is called w) an alloy x) an assay y) a mineral z) a ceramic
Last Answer : ANSWER: W -- AN ALLOY
Description : In multi stage compressor, the isothermal compression is achieved by A. Employing intercooler B. By constantly cooling the cylinder C. By running compressor at very slow speed D. By insulating the cylinder
Last Answer : ANSWER : C
Description : Ultrafine grinders operate principally by (A) Slow compression (B) Impact (C) Attrition (D) Cutting action
Last Answer : (C) Attrition
Description : A patient on the dental chair has cardiac arrest. What is INCORRECT, A. Observing the vital signs and check that the air way is clear is at high importance B. Expired air has 15% O2 only, ... D. Intermittent positive pressure is better than mouth to mouth when it has been given at the same rate.
Last Answer : C. Intermittent positive pressure at the rate of 40/min will reduce the chances of cerebral hypoxia
Description : A child with rampant caries taking medicine with high quantity of sugar; the best way to help preventing caries is, A. Change sugar to sorbitol sweetener B. Report the patient is having expectorant C. Give him the syrup during sleep time D. Give him inverted sugar
Last Answer : A. Change sugar to sorbitol sweetener
Description : The most accurate way to evaluate the effectiveness of root planning is by: A. Inspect the root surface with an instrument for root smoothness B. Use air for visual inspection C. Activate a ... the appointment for a decrease oedema and bleeding E. Evaluate the soft tissues 10 to 14 days later.
Last Answer : E. Evaluate the soft tissues 10 to 14 days later.
Description : The adoption of High Yielding Variety Programme in Indian Agriculture started in – a) 1966 b) 1965 c) 1968 d) 1967
Last Answer : a) 1966
Description : High levels of Adoption of herbicide resistant crops have dramatically ____________ the use of herbicides a).I ncreased b). Decreased c). No effect d). None of the above
Last Answer : a).I ncreased
Description : The advantages of firing pulverised coal in the furnace lies in the fact that, it (A) Permits the use of high ash content coal (B) Permits the use of low fusion point ash coal (C) Accelerates the burning rate and economises on fuel consumption (D) All (A), (B) and (C)
Last Answer : (C) Accelerates the burning rate and economises on fuel consumption
Description : Higher efficiency in the combustion of solid fuel cannot be achieved by (A) Proper fuel preparation (B) Keeping the flue gas exhaust temperature very high (C) Adopting efficient-fuel firing technique & equipment (D) Supplying correct quantity of combustion air
Last Answer : (B) Keeping the flue gas exhaust temperature very high
Description : Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? (A) Ash disposal problem (B) Excessive fly-ash discharge from the stack (C) High power consumption in its transportation (D) Erosion of induced draft fan blades
Last Answer : (A) Ash disposal problem